Robert from Juicedlink just uploaded a video showing some of the Canon 5D Mark III audio features along with the Nikon D800 audio features. Towards the second half, he introduces a new Juicedlink RM333 low noise pre-amp. We've run a few audio tests running a microphone into the Canon 5DM3 and there's no doubt using an external preamp will still yield better results. The internal amps of the Canon DSLR aren't very good.

 

The new Juicedlink RM333 preamp looks like a good small solution, and it was pretty smart to add in the backup audio that had been attenuated (reduced volume). There's times when your subject gets a bit excited and starts talking a little louder than expected, so a lower recording can save you from clipping. When the RM333 becomes available, you'll be able to find it over at Juicedlink's Website (click here).